TryEncodeDateMonthWeek

Encode a year, month, week of month and day of week to a TDateTime value

Declaration

Source position: dateutil.inc line 329

function TryEncodeDateMonthWeek(

const AYear: Word;

const AMonth: Word;

const AWeekOfMonth: Word;

const ADayOfWeek: Word;

var AValue: TDateTime

):Boolean;

Arguments

`AYear`		Year
`AMonth`		Month in the year
`AWeekOfMonth`		Week in the month
`ADayOfWeek`		Day in the week
`AValue`		Encoded `TDateTime` value

Function result

True if the encoding was succesful, False if not.

Description

TryEncodeDateTime encodes the values AYearAMonth, WeekOfMonth,ADayOfWeek, to a date value and returns this value in AValue.

If the encoding was succesful, True is returned, False if any of the arguments is not valid.

DecodeDateMonthWeek		Decode a DateTime value in a month, week of month and day of week
EncodeDateTime		Encodes a DateTime value from all its parts
EncodeDateWeek		Encode a `TDateTime` value from a year, week and day of week triplet
EncodeDateDay		Encodes a year and day of year to a DateTime value
EncodeDateMonthWeek		Encodes a year, month, week of month and day of week to a DateTime value
TryEncodeDateTime		Encode a Year, Month, Day, Hour, minute, seconds, milliseconds tuplet to a `TDateTime` value
TryEncodeDateWeek		Encode a year, week and day of week triplet to a `TDateTime` value
TryEncodeDateDay		Encode a year and day of year to a `TDateTime` value
NthDayOfWeek		Calculate which occurrence of weekday in the month a given day represents

Example

Program Example86;

{ This program demonstrates the TryEncodeDateMonthWeek function }

Uses SysUtils,DateUtils;

Var
  Y,M,Wom,Dow : Word;
  TS : TDateTime;

Begin
  DecodeDateMonthWeek(Now,Y,M,WoM,DoW);
  If TryEncodeDateMonthWeek(Y,M,WoM,Dow,TS) then
    Writeln('Today is : ',DateToStr(TS))
  else
    Writeln('Invalid year/month/week/dow indication');
End.

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